| Description |
142 samples were prepped by dry sieve -150 mesh, crush and split, ceramic pulverizing and large vial surcharge. 142 samples were analyzed by the following methods and digestions: INAA, AA after HNO3-HCl hot extraction. 109 samples were analyzed by CVAA after HNO3-HCl-SnSO4 acid digestion, AA with Muliti-Acid MIBK and XRF. 90 samples were analyzed by DC Plasma Emission after NaOH fusion. 89 samples were analyzed by ICP after HF-HNO3-HClO4 acid digestion with HCl leach. Assay of High Zn to follow on V91-20128.6 |